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    • 32. 发明公开
    • PENCILS CONTAINING RECLAIMED RUBBER
    • STIFT AUS REGENIERTEM KAUTSCHUK
    • EP0998397A4
    • 2006-06-14
    • EP98935853
    • 1998-07-21
    • HOLLOWAY ANDREWGIDLEY VERNONERLANDSON JOHN
    • HOLLOWAY ANDREWGIDLEY VERNONERLANDSON JOHN
    • B43K1/00B43K19/14B43K19/16
    • B43K19/16B43K19/14
    • Pencils are disclosed that have an outer sheath comprising a base elastomer and reclaimed rubber for enclosing an inner marking core therein. The base elastomer provides a vulcanizate with basic physical and environmental resistant properties including at a miinimum elasticity, flexibility, and relative impermeability to water and air while the reclaimed rubber advantageously extends the base elastomer to reduce cost and help reduce quantities of existing environmentally harmful waste. By not incorporating wood in the sheath, the present invention does not contribute to deforestation or consumption of a natural resource, but to the contrary, describes an efficient use for used tires. In addition, the pencils of the present invention are easier to manufacture than wooden pencils and generate less health hazards.
    • 公开了具有外部护套的铅笔,所述外部护套包括基础弹性体和用于将内部标记芯包封在其中的再生橡胶。 基础弹性体提供具有基本物理和环境耐受性的硫化橡胶,包括最小弹性,柔韧性和对水和空气的相对不渗透性,而再生橡胶有利地延伸基础弹性体以降低成本并有助于减少现有的对环境有害的废弃物的量。 通过不将木材结合到护套中,本发明不会导致森林砍伐或自然资源的消耗,相反,描述了用于旧轮胎的有效使用。 另外,本发明的铅笔比木制铅笔更容易制造,并且产生较少的健康危害。